I think it depends on the person.
Not everyone wants to tie those loose ends through ritualistic means and would prefer to use meditation and self-growth to unbind themselves.
I think it is because the idea of blood and nail-clippings isn’t viewed as the “norm” these days. I remember reading posts when I first got into my “path” where a guy was injecting someone else’s blood previous to meditations under intoxication of other means and he said it would show them their true nature as well as their path. Could be viewed as crazy, could possibly work. I’ve seen way worse in books pre-1990s to be honest with you.
Just seems things have changed and the idea of banishing, binding, cursing, etc is just viewed as a means to an end like everything else and some people don’t want to abruptly end things or cause harm to someone without them harming them.
Really can’t tell if you were being sarcastic like everyone else has said though because there is a lot of information missing from what those things are actually used for.
I’ve drank blood.
I’ve used my blood, other’s blood, animal blood.
I’ve burned my flesh.
I’ve chopped off flesh.
I’ve had donors give me flesh.
I’ve used semen.
I’ve had women offer me their hair.
Never used toe nails outside of graveyard or rebirth rituals so I’m not sure how they pertain to closing ties with the living.
Definitely a good question for the forum though since they seem to fall under extreme taboo these days.